TH 350

Old 10-15-2008, 06:47 PM
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billpj
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Default TH 350

I have a '78 Malibu. It runs 11.60 at 114 MPH - 1.65 60 FT with 406 TH 350 and 4.11 gears on foot brake. It weights 3,505 lbs. I was going to install a brake in the TH 350. The trans has a Race Master rebuild kit and a good reworked valve body. Has anyone put a brake in a trans like this with no other modifications and, if so, how long did it last?

Also, I have talked to a few trans guys and they tell me to put in a powerglide with a brake. - I thought that my car would be too heavy for the powerglide. Does anyone know if that's true, and would the car be slower with the powerglide?

I looking for some help/suggestions. Thanks in advance
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Old 10-15-2008, 07:41 PM
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jmarksdragster
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A car like yours will almost always run faster with a glide as long as you are running enough converter for the engine combo. What is in the 406 and what stall?
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Old 10-15-2008, 08:46 PM
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zipper06
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My car on the left (avatar) weighs a little over 3250lbs with a 377" motor, i run a PG with pro brake, but you also need more gear. I run 6.52 and [email protected] The car is backhalfed and tubbed with a glass hood, other than than that the car is totalally stock, dash with all instruments, even still the ac controls, roll up glass, all the lights,etc.
But i do run 5.43 gears.
The PG is easier to turn, and lighter than a 350 turbo.

JMO

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Old 10-16-2008, 09:24 AM
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sommersracing
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Originally Posted by jmarksdragster
A car like yours will almost always run faster with a glide as long as you are running enough converter for the engine combo. What is in the 406 and what stall?
Just as Mark said, go with a glide. You will be money ahead in the long run. Matt
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Old 10-16-2008, 05:02 PM
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billpj
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will a good rebuild cluthes ect. with a break be good for what i am doing or do i need more. i have a cone 4800 stall
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Old 10-16-2008, 05:04 PM
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billpj
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for a glide
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Old 11-09-2008, 02:32 PM
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FullTimeRacing
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I think i'd put that car on a diet frist.theres got to be something you could take out

jmo
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Old 11-18-2008, 06:51 PM
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silverranger
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well,from my point of view and from what i have seen with most of the foot brake cars at our track a 350 turbo is always faster in a heavy car.you can't beat that low first gear to get off the line.i have driven 8 second dragsters and 9 second door cars and a p.g. is a bad ass trans. but put it in a 10.80 car at 3200# and you have a slug....i know of at least 6 pro cars that spent a lot of money on glides and 8" convertors and lost 4-5 tenths.if you have a good intermediate drum and sprag,trans brake that thing and stand that bitch on the back bumper.
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Old 11-18-2008, 07:21 PM
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just wanted to add,a friend let me drive his camaro one sunday this year. all steel,heavy car with a mild 350 sbc. it went 10.75-10.75-10.74...i lost. but my point is with a 3 speed trans,the 60' was 1.39...this thing would launch. most cars i have seen with a glide and that 60' are running..9.90s.
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Old 11-18-2008, 07:55 PM
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kwkracing
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haha, then put a turbo 400! 2.48 1st gear i believe
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